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- #------------------------------------------------------------------------------
- # $File: intel,v 1.23 2022/10/31 13:22:26 christos Exp $
- # intel: file(1) magic for x86 Unix
- #
- # Various flavors of x86 UNIX executable/object (other than Xenix, which
- # is in "microsoft"). DOS is in "msdos"; the ambitious soul can do
- # Windows as well.
- #
- # Windows NT belongs elsewhere, as you need x86 and MIPS and Alpha and
- # whatever comes next (HP-PA Hummingbird?). OS/2 may also go elsewhere
- # as well, if, as, and when IBM makes it portable.
- #
- # The `versions' should be un-commented if they work for you.
- # (Was the problem just one of endianness?)
- #
- 0 leshort 0502 basic-16 executable
- >12 lelong >0 not stripped
- #>22 leshort >0 - version %d
- 0 leshort 0503 basic-16 executable (TV)
- >12 lelong >0 not stripped
- #>22 leshort >0 - version %d
- 0 leshort 0510 x86 executable
- >12 lelong >0 not stripped
- 0 leshort 0511 x86 executable (TV)
- >12 lelong >0 not stripped
- 0 leshort =0512 iAPX 286 executable small model (COFF)
- >12 lelong >0 not stripped
- #>22 leshort >0 - version %d
- 0 leshort =0522 iAPX 286 executable large model (COFF)
- >12 lelong >0 not stripped
- #>22 leshort >0 - version %d
- # updated by Joerg Jenderek at Oct 2015
- # https://de.wikipedia.org/wiki/Common_Object_File_Format
- # http://www.delorie.com/djgpp/doc/coff/filhdr.html
- # ./msdos (version 5.25) labeled the next entry as "MS Windows COFF Intel 80386 object file"
- # ./intel (version 5.25) label labeled the next entry as "80386 COFF executable"
- # SGI labeled the next entry as "iAPX 386 executable" --Dan Quinlan
- 0 leshort =0514
- # use subroutine to display name+flags+variables for common object formatted files
- >0 use display-coff
- #>12 lelong >0 not stripped
- # no hint found, that at offset 22 is version
- #>22 leshort >0 - version %d
- 0 leshort 0x0200
- # no F_EXEC flag bit implies Intel ia64 COFF object file without optional header
- >18 leshort ^0x0002
- # skip some DEGAS high-res uncompressed bitmap *.pi3 handled by ./images like
- # GEMINI03.PI3 MODEM2.PI3 POWERFIX.PI3 sigirl1.pi3 vanna5.pi3
- # by test for valid starting character (often point 0x2E) of 1st section name
- >>20 ubyte >0x1F
- >>>0 use display-coff
- # F_EXEC flag bit implies Intel ia64 COFF executable
- >18 leshort &0x0002
- >>0 use display-coff
- 0 leshort 0x8664
- >0 use display-coff
- # rom: file(1) magic for BIOS ROM Extensions found in intel machines
- # mapped into memory between 0xC0000 and 0xFFFFF
- # From: Alex Myczko <alex@aiei.ch>
- # updated by Joerg Jenderek
- # https://en.wikipedia.org/wiki/Option_ROM
- # URL: http://fileformats.archiveteam.org/wiki/BIOS
- # Reference: http://www.lejabeach.com/sisubb/BIOS_Disassembly_Ninjutsu_Uncovered.pdf
- 0 beshort 0x55AA
- # skip misidentified raspberry pi pieeprom-*.bin by check for
- # unlikely high ROM size (0xF0*512=240*512) and not observed start instruction 0x0F
- >2 ubeshort !0xF00F
- # skip 2 byte sized eof.bin with start magic
- >>0 use rom-x86
- 0 name rom-x86
- >0 beshort x BIOS (ia32) ROM Ext.
- #!:mime application/octet-stream
- !:mime application/x-ibm-rom
- !:ext rom/bin
- ################################################################################
- # not Plug aNd Play ($PnP) like 00000000 (ide_xtp.bin kvmvapic.bin V7VGA.ROM) 000000fc (MCT-VGA.bin)
- # 55aaf00f (pieeprom-*.bin) 55aa40e9 (Trm3x5.bin) 24506f4f (sgabios-bin.rom)
- # 55aa4be9 (vgabios-stdvga.rom vgabios-cirrus-bin.rom vgabios-vmware-bin.rom)
- >(26.s) ubelong !0x24506e50
- #>(26.s) ubelong !0x24506e50 NOT PNP=%8.8x
- # also not PCI (PCIR) implies "old" ISA cards or foo like: 8a168404 (MCT-VGA.bin)
- # 55aaf00f (pieeprom*.bin)
- >>(24.s) ubelong !0x50434952
- #>>(24.s) ubelong !0x50434952 ISA CARD=%8.8x
- # "old" identification strings used in file version 5.41 and earlier
- # probably an USB controller
- >>>5 string USB USB
- # probably https://en.wikipedia.org/wiki/Preboot_Execution_Environment
- >>>7 string LDR UNDI image
- # probably another Adaptec SCSI controller
- >>>26 string Adaptec Adaptec
- # http://minuszerodegrees.net/rom/bin/adaptec_aha1542cp_bios_908501-00.bin
- # already done by PNP variant
- #>>>28 string Adaptec Adaptec
- # probably Promise SCSI controller
- >>>42 string PROMISE Promise
- # old test for IBM compatible Video cards; INTERNAL FACTS WHY IS THIS WORKING?
- >30 string IBM IBM comp. Video
- # display exact text for IBM compatible Video cards with longer text
- >>33 ubyte !0
- >>>30 string x "%s"
- # http://minuszerodegrees.net/rom/bin/unknown/MCT-VGA-16%20-%20TDVGA%203588%20BIOS%20Version%20V1.04A.zip
- # "IBM COMPATIBLETDVGA 3588 BIOS Version V1.04A2+" "MCT-VGA-16 - TDVGA 3588 BIOS Version V1.04A.bin"
- # "IBM VGA Compatible\001" NVidia44.bin
- # "IBM EGA ROM Video Seven BIOS Code, Version 1.04" V7VGA.ROM
- # "IBM" vgabios-stdvga.rom
- # "IBM" vgabios-vmware-bin.rom:
- # "IBM" vgabios-cirrus-bin.rom
- # "IBM" vgabios-virtio-bin.rom
- ################################################################################
- # ROM size in 512B blocks must be interpreted as unsigned for ROM of network cards
- # like: efi-eepro100.rom efi-rtl8139.rom pxe-e1000.rom
- >2 ubyte x (%u*512)
- # file name file size calculated size remark
- # eof.bin 2 - with start magic nothing is shown here
- # orchid.bin 188 0 =0*512 on window 95 CD in Drivers\audio\orchid3d
- # multiboot.bin 1024 1024 =2*512 QEMU emulator
- # loader1.bin 512 2048 =4*512
- # ide_xtp.bin 8192 8192 =16*512
- # kvmvapic.bin 9216 9216 =18*512
- # V7VGA.ROM 18832 16384 =32*512
- # adaptec1542.bin 32768 16384 =32*512
- # MCT-VGA.bin 32768 24576 =48*512
- # 2975BIOS.BIN 32768 32256 =63*512
- # efi-e1000.rom 196608 64000 =125*512
- # efi-rtl8139.rom 176640 66048 =129*512
- # pieeprom*.bin 524288 122880 =240*512
- ################################################################################
- # initialization vector with executable code; often near JuMP instruction E9 yy zz
- >3 ubyte =0xE9 jmp
- # jmp offset like: 008fh 0093h 009fh 00afh 0143h 3ad7h 5417h 54ech 594dh 895fh
- >>4 uleshort x %#4.4x
- # for initialization vector samples without 3 byte jump instruction
- >3 ubyte !0xE9 instruction
- # eb4b3734h NVidia44.bin
- # 00003234h V7VGA.ROM
- # 060e0731h kvmvapic.bin
- # cb000000h linuxboot-bin.rom
- # e80d0fcbh PXE-Intel.rom
- # b8004875h orchid.bin
- >>3 ubelong x %#8.8x
- # For misidentified raspberry pi pieeprom-*.bin like: 0xf00f
- #>2 ubeshort x \b, AT 2 %#4.4x
- ################################################################################
- # new sections for BIOS (ia32) ROM Extension
- # 4 bytes ASCII Signature "$PnP" for Plug aNd Play expansion header
- >(26.s) string =$PnP \b;
- #>(26.s) string =$PnP FOUND $PnP
- # at 1Ah possible offset to expansion header structure; new for Plug aNd Play
- >>26 uleshort x at %#x PNP
- # Plug and Play vendor+device ID like: 0 0x000f1000 (2975BIOS.BIN) 0x31121095 (4243.bin) 0x04904215 (adaptec1542.bin)
- #>>(26.s+0x0A) ulelong !0 NOT-nullID=%8.8x
- >>(26.s+0x0A) uleshort !0
- # show PnP Vendor identification in human readable text form instead of numeric
- # For adaptec_ava1515_bios_585201-00.bin reverted endian! BUT IS THIS ALWAYS TRUE?
- >>>(26.s+0x0C) use \^PCI-vendor
- >>>(26.s+0x0A) ubeshort x device=%#4.4x
- # 3 byte Device type code; probably the same meaning as in PCI section?
- # OK for storage controller SCSI (2975BIOS.BIN adaptec1542.bin)
- # and network controller ethernet (efi-e1000.rom efi-rtl8139.rom)
- >>(26.s+0x12) use PCI-class
- # structure revision like: 01h
- >>(26.s+4) ubyte !1 \b, revision %u
- # PnP Header structure length in multiple of 16 bytes like: 2
- >>(26.s+5) uleshort !2 \b, length %u*16
- # offset to next header; 0 if none
- >>(26.s+7) uleshort !0 \b, at %#x next header
- # reserved byte; seems to be zero
- >>(26.s+8) ubyte !0 \b, reserved %#x
- # 8-bit checksum for this header; calculated and patched by patch2pnprom
- >>(26.s+9) ubyte !0 \b, CRC %#x
- # pointer to optional manufacturer string; like: 0 (4243.bin) 59h 5ch 60h c7h 14eh 27ch 296h 324h 3662h
- >>(26.s+0x0E) uleshort >0 \b, at %#x
- >>>(26.s+0x0C) uleshort x
- # manufacturer ASCII-Z string like "http://ipxe.org" "Plop - Elmar Hanlhofer www.plop.at" "QEMU"
- >>>>(&0.s) string x "%s"
- # pointer to optional product string; like: 0 (2975BIOS.BIN) 6ch 70h 7ch d9h 160h 281h 29bh 329h
- >>(26.s+0x10) uleshort >0 \b, at %#x
- >>>(26.s+0x0E) uleshort x
- # often human readable product ASCII-Z string like "iPXE" "Plop Boot Manager"
- # "multiboot loader" "Intel UNDI, PXE-2.0 (build 082)"
- >>>>(&0.s) string x "%s"
- # PnP Device indicators; contains bits that identify the device as being capable of bootable
- #>>(26.s+0x15) ubyte x \b, INDICATORS %#x
- # device is a display device
- >>(26.s+0x15) ubyte &0x01 \b, display
- # device is an input device
- >>(26.s+0x15) ubyte &0x02 \b, input
- # device is an IPL device
- >>(26.s+0x15) ubyte &0x04 \b, IPL
- #>>(26.s+0x15) ubyte &0x08 reserved
- # ROM is only required if this device is selected as a boot device
- >>(26.s+0x15) ubyte &0x10 \b, bootable
- # indicates ROM is read cacheable
- >>(26.s+0x15) ubyte &0x20 \b, cacheable
- # ROM may be shadowed in RAM
- >>(26.s+0x15) ubyte &0x40 \b, shadowable
- # ROM supports the device driver initialization model
- >>(26.s+0x15) ubyte &0x80 \b, InitialModel
- # boot connection vector; an offset to a routine that hook into INT 9h, INT 10h, or INT 13h
- # 0 means disabled 0x0429 (4650_sr5.bin) 0x0072 (adaptec1542.bin)
- >>(26.s+0x16) uleshort !0 \b, boot vector offset %#x
- # disconnect vector; offset to routine that do cleanup from an unsuccessful boot attempt
- >>(26.s+0x18) uleshort !0 \b, disconnect offset %#x
- # bootstrap entry point/vector (BEV); offset to a routine (like RPL) that hook into INT 19h
- # 0 means disabled 0x3c (multiboot.bin) 0x358 (efi-rtl8139.rom) 0xae7 (PXE-Intel.rom)
- >>(26.s+0x1A) uleshort !0 \b, bootstrap offset %#x
- # 2nd reserved area; seems to be zero
- >>(26.s+0x1C) uleshort !0 \b, 2nd reserved %#x
- # static resource information vector; 0 means disabled
- >>(26.s+0x1E) uleshort !0 \b, static offset %#4.4x
- ################################################################################
- # 4 bytes ASCII Signature "PCIR" for PCI Data Structure
- #>(24.s) string =PCIR FOUND PCIR
- >(24.s) string =PCIR \b;
- # pointer to PCI data structure like: 1Ch 38h 104h 8E44h
- >>24 uleshort x at %#x PCI
- # Vendor identification (ID) https://pci-ids.ucw.cz/v2.2/pci.ids
- #>>(24.s+4) uleshort x ID=%4.4x
- # show Vendor identification in human readable text form instead of numeric
- >>(24.s+4) use PCI-vendor
- # device identification (ID)
- >>(24.s+6) uleshort x device=%#4.4x
- # Base+sub class code https://wiki.osdev.org/PCI
- >>(24.s+0x0D) use PCI-class
- # pointer to vital product data (VPD); 0 indicates no VPD; WHAT EXACTLY iS VPD?
- >>(24.s+8) uleshort !0 \b, at %#x VPD
- # PCI data structure length like: 24h 28h
- >>(24.s+0xA) uleshort >0x28 \b, length %u
- # PCI data structure revision like: 0 3
- >>(24.s+0xC) ubyte >0 \b, revision %u
- # image length (hexadecimal) in multiple of 512 bytes like: 54 56 68 6a 76 78 7c 7d 7e 7f 80 81 83
- # Apparently this gives the same information as given by byte at offset 2 but as 16-bit
- #>>(24.s+0x10) uleshort x \b, length %u*512
- # revision level of code/data like: 0 1 201h 502h
- >>(24.s+0xC) ubyte >1 \b, code revision %#x
- # code type: 0~Intel x86/PC-AT compatible 1~Open firmware standard for PCI42 FF~Reserved
- >>(24.s+0x14) ubyte >0 \b, code type %#x
- # last image indicator; bit 7 indicates "last image"; bits 0-6 are reserved
- >>(24.s+0x15) ubyte >0
- >>>(24.s+0x15) ubyte =0x80 \b, last ROM
- # THIS SHOULD NOT HAPPEN!
- >>>(24.s+0x15) ubyte !0x80 \b, indicator %x
- # 3rd reserved area; seems to be zero in most cases but not for
- # efi-e1000.rom efi-rtl8139.rom
- >>(24.s+0x16) ubeshort !0 \b, 3rd reserved %#x
- # Flash descriptors for Intel SPI flash roms.
- # From Dr. Jesus <j@hug.gs>
- 0 lelong 0x0ff0a55a Intel serial flash for ICH/PCH ROM <= 5 or 3400 series A-step
- 16 lelong 0x0ff0a55a Intel serial flash for PCH ROM
- # From: Joerg Jenderek
- # URL: https://en.wikipedia.org/wiki/Advanced_Configuration_and_Power_Interface
- # Reference: https://uefi.org/sites/default/files/resources/ACPI_6_3_final_Jan30.pdf
- # Note: generated for example by `cat /sys/firmware/acpi/tables/DSDT MyDSDT.aml`
- 0 string DSDT
- >0 use acpi-table
- # not tested or other file format
- 0 string APIC
- >0 use acpi-table
- #0 string ASF!
- #>0 use acpi-table
- 0 string FACP
- >0 use acpi-table
- #0 string FACS
- #>0 use acpi-table
- 0 string MCFG
- >0 use acpi-table
- 0 string SLIC
- >0 use acpi-table
- 0 string SSDT
- >0 use acpi-table
- 0 name acpi-table
- # skip ASCII text starting with DSDT by looking for valid "low" revision
- >8 ubyte <17 ACPI Machine Language file
- # assume that ACPI tables size are lower than 16 MiB
- #>4 ulelong <0x01000000
- # DSDT for Differentiated System Description Table
- >>0 string x '%.4s'
- #!:mime application/octet-stream
- !:mime application/x-intel-aml
- !:ext aml
- # the manufacture model ID like: VBOXBIOS BXDSDT
- >>16 string >\0 %.8s
- # OEM revision of DSDT for supplied OEM Table ID like: 0 1 2 20090511
- >>>24 ulelong x %x
- # OEM ID like: INTEL VBOX (VirtualBox) BXDSDT (qemu) MEDION or \030\001\0\0 for s3pt.aml
- >>10 ubyte >040 by %c
- >>>11 ubyte >040 \b%c
- >>>>12 ubyte >040 \b%c
- >>>>>13 ubyte >040 \b%c
- >>>>>>14 ubyte >040 \b%c
- >>>>>>>15 ubyte >040 \b%c
- # This field also sets the global integer width for the AML interpreter.
- # Values less than two will cause the interpreter to use 32-bit.
- # Values of two and greater will cause the interpreter to use full 64-bit.
- # 16 for asf!.aml, 67 fo rsdp.aml
- >>8 ubyte x \b, revision %u
- # length, in bytes, of the entire DSDT (including the header)
- >>4 ulelong x \b, %u bytes
- # entire table must sum to zero
- #>>9 ubyte x \b, checksum %#x
- # vendor ID for the ASL Compiler like: INTL MSFT ...
- >>28 string >\0 \b, created by %.4s
- # revision number of the ASL Compiler like: 20051117 20140724 20190703 20200110 ...
- >>>32 ulelong x %x
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